Home / 117,285.97-161,853.73-63,569.61

Finding the Fourth Proportional to 117,285.97, 161,853.73 and 63,569.61

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Solution

The fourth proportional to 117,285.97, 161,853.73 and 63,569.61 is: 87,725.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,285.97 : 161,853.73 = 63,569.61 : x
  2. Step 2: Convert to fraction form
    117,285.97/161,853.73 = 63,569.61/x
  3. Step 3: Cross multiply
    117,285.97x = 161,853.73 × 63,569.61
  4. Step 4: Simplify right side
    117,285.97x = 10,288,977,366.03
  5. Step 5: Solve for x
    x = 10,288,977,366.03/117,285.97
  6. Step 6: Final answer
    x = 87,725.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.